A liter is a metric unit of volume used around the world to measure liquids and other fluid substances. It's spelled liter in American English (and litre in British English), and is abbreviated as L or l. One liter is equal to 1,000 milliliters or 0.26417 US gallons, making it a practical size for measuring both household and commercial quantities.
As the base unit of volume in the metric system, the liter is widely used in cooking, grocery labeling, beverages, scientific measurements, and industrial applications. From water bottles and milk cartons to chemical solutions and fuel containers, the liter provides a universal standard that's easy to work with and convert.
Uses: The liter is one of the most widely used volume units globally. In daily life, it's found on drink labels, cleaning products, and food packaging. Everyday items like juice, milk, and bottled water are often sold in whole or fractional liters, making it easy for consumers to understand quantity at a glance.
The liter is used in the kitchen to measure liquids in recipes or for serving sizes. In healthcare, the liter is used for preparing IV fluids, running lab tests, and mixing medications. It’s also used in the auto industry to measure things like engine oil and fuel efficiency. Because it’s easy to understand and widely accepted, the liter continues to be a go-to unit across many areas of daily life.
The imperial gallon is a unit of volume used in the imperial measurement system, and it is historically common in the United Kingdom and several other countries. One imperial gallon is equal to 4.54609 liters, which makes it significantly larger than the US gallon (approximately 3.785 liters). It is abbreviated as gal and traditionally used for measuring liquids in larger quantities.
In the imperial system, a gallon is made up of four quarts, eight pints, or 160 imperial fluid ounces. Though the UK has officially adopted the metric system, the imperial gallon is still recognized in specific contexts and remains part of British measurement history. It's most commonly associated with fuel pricing and older food or drink packaging.
Uses: The imperial gallon is most commonly seen today at fuel stations in the UK, where petrol and diesel are still sold by the gallon for pricing comparisons, even though the actual quantity delivered is measured in liters. Historically, the gallon was used for everything from milk deliveries to beer and cider sales.
While modern recipes and packaging have largely shifted to liters and milliliters, the imperial gallon occasionally appears in traditional instructions or product specs, especially for bulk liquids. For those referencing older materials or converting classic measurements, the imperial gallon remains a useful and historically significant unit.
1 L = 0.219969 gal (imp)
Let’s say you want to convert 100 L to gal (imp).
Using the formula:
100 × 0.219969 = 21.997 gal (imp)
So, 100 L is approximately 21.997 gal (imp).
| Liter (L) | Gallon (Imperial) (gal (imp)) |
|---|---|
| 1 L | 0.22 gal (imp) |
| 2 L | 0.44 gal (imp) |
| 3 L | 0.66 gal (imp) |
| 4 L | 0.88 gal (imp) |
| 5 L | 1.1 gal (imp) |
| 6 L | 1.32 gal (imp) |
| 7 L | 1.54 gal (imp) |
| 8 L | 1.76 gal (imp) |
| 9 L | 1.98 gal (imp) |
| 10 L | 2.2 gal (imp) |
| 11 L | 2.42 gal (imp) |
| 12 L | 2.64 gal (imp) |
| 13 L | 2.86 gal (imp) |
| 14 L | 3.08 gal (imp) |
| 15 L | 3.3 gal (imp) |